2 * Copyright (c) 2016 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package io.fd.honeycomb.vpp.distro
19 import com.google.inject.Inject
20 import groovy.transform.ToString
21 import groovy.util.logging.Slf4j
22 import io.fd.honeycomb.infra.distro.ProviderTrait
23 import org.openvpp.jvpp.JVppRegistry
24 import org.openvpp.jvpp.JVppRegistryImpl
27 * Provides JVppRegistry. Must be a singleton due to shutdown hook usage.
28 * Registers shutdown hook to disconnect from VPP.
32 class JVppRegistryProvider extends ProviderTrait<JVppRegistry> {
35 VppConfigAttributes config
39 def registry = new JVppRegistryImpl(config.jvppConnectionName);
41 // Closing JVpp connection with shutdown hook to erase the connection from VPP so HC will be able
42 // to connect next time. If JVM is force closed, this will not be executed and VPP connection
43 // with name from config will stay open and prevent next startup of HC to success
44 Runtime.addShutdownHook {
45 log.info("Disconnecting from VPP")
47 log.info("Successfully disconnected from VPP as {}", config.jvppConnectionName)
49 log.info("JVpp connection opened successfully as: {}", config.jvppConnectionName)
51 } catch (IOException e) {
52 throw new IllegalStateException("Unable to open VPP management connection", e)